redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

clk: Add some more lockdep assertions 

We don't check to make sure the enable_lock is held across
enable/disable and we don't check if the prepare_lock is held
across prepare/unprepare. Add some asserts to catch any future
locking problems.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
hifive-unleashed-5.1
Stephen Boyd 2015-05-06 17:00:54 -07:00
parent 18e70efe3e
commit a633472519
1 changed files with 8 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/clk/clk.c
View File

@ -543,6 +543,8 @@ EXPORT_SYMBOL_GPL(__clk_mux_determine_rate_closest);
static void clk_core_unprepare(struct clk_core *core)
{
lockdep_assert_held(&prepare_lock);
if (!core)
return;
@ -589,6 +591,8 @@ static int clk_core_prepare(struct clk_core *core)
{
int ret = 0;
lockdep_assert_held(&prepare_lock);
if (!core)
return 0;
@ -644,6 +648,8 @@ EXPORT_SYMBOL_GPL(clk_prepare);
static void clk_core_disable(struct clk_core *core)
{
lockdep_assert_held(&enable_lock);
if (!core)
return;
@ -692,6 +698,8 @@ static int clk_core_enable(struct clk_core *core)
{
int ret = 0;
lockdep_assert_held(&enable_lock);
if (!core)
return 0;